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Old 06-27-2011, 06:07 PM   #1 (permalink)
Dougba53
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2004.5 Chevy 3500 Duramax Overheating

I have a 2004.5 Chevy 3500 LLY Duramax I use to tow a 15K fifth wheel toy hauler. When I am traveling through the mountain terrain, the engine begins to overheat and so does my transmission. I have OD turned off, and trailer towing turned on, slow down to 3rd and 2nd gear keeping the RPM around 2800. I don't know whether to get rid of the truck and buy a 2006 Chevy 3500 Duramax or a Ford or Dodge or spend money to try to resolve the overheating issue. I have had a new radiator installed and had the transmission flushed and serviced. Any recommendations?
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Old 06-27-2011, 06:32 PM   #2 (permalink)
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1. http://www.dieselplace.com/forum/sho...d.php?t=371427

2. LBZ radiator stack (about $4k)

3. Sell truck and get an LBZ or newer.

LLY overheating is a known issue. Some do it, some don't. Yours apparently does.
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2005 D-max w/5-Speed Ally 2WD Chevy Silverado 2500HD, CC/SB LS
- EGR Blocker Plate & PCV Re-Route
- 2" Drop Shackles
- Aluminum Fuel Filter Bleeder Screw
- Kool Vue Extendable Towing Mirrors (Leveled)
- 20" Wheels w/275/55/20 XL Hancook Ventus AS tires
- Auto Meter Phantom 45 PSI Boost & EGT Gauge
- Carter 4601HP 100GPH @ 18PSI Lift Pump w/Quick Fuel Regulator @ 10.5PSI, Napa 4770/3528 Base/Filter
- MBRP 4" Exhaust w/All Season Diesel Performance 3" Down Pipe - Kitty Died
- LBZ Turbo Mouthpiece
- 5DSP EFI Live by Danville Performance (338/392/417/498 & 338 w/Lope HP Tunes) w/Edge Insight CTS
- 20.1 MPG @ 392 HP @ 70 MPH - 16.8 MPG City @ 392 HP (Hand Calculated)
- Pioneer AVH-P3400BH through Bose Amp/Speakers
- Bilstein Shocks 24-186735 & 24-186742 (5100s)


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Old 06-27-2011, 07:04 PM   #3 (permalink)
Dougba53
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2004.5 Chevy 3500 Duramax Overheating

Do you know anything about the 2006 Chevy 3500 Duramax?
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Old 06-27-2011, 07:08 PM   #4 (permalink)
Turbobruce
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Quote:
Originally Posted by Dougba53 View Post
Do you know anything about the 2006 Chevy 3500 Duramax?

Given the info you stated, it would probably get hot as well. There is a DIY secondary radiator you can build for about 800.00. It is a lot cheaper then getting a new truck. I had overheating problems and the secondary radiator cured it. My truck tows in 6-8% in grades in Utah in the heat and only gets to 210 degrees pulling 12k. Option #1 on Diesel wanna be's list is your best bet. Contact Engineer837 for info.
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05 CC 2wd Duramax. 4 inch lift spindles with 2 inch blocks,295/75/16 BFGs,MBRP 4" cat back. V2 w/fan. TX CAI, LBZ MP,AAM 4.11 gears in the back. Tuned by Danville Performance!

Last edited by Turbobruce; 06-27-2011 at 07:10 PM.
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Old 06-27-2011, 07:39 PM   #5 (permalink)
Dougba53
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2004.5 Chevy 3500 Duramax Overheating

I am told by Killerbeeperformance that installing an IOH kit and a TCAI kit will resolve my overheating issue with a money back guarantee. Any comments?
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Old 06-27-2011, 08:20 PM   #6 (permalink)
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I would highly doubt it would help, GM's "fix" for the issue was a LBZ intake and mouthpiece, but it didn't help. Perhaps you should read the overheating stickie at the top of the LLY page, lots of info there to bring yourself up to speed on a known LLY issue. And don't get scared and dump the truck, their are known fixes to improve the cooling capacity of your stack
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>2005 Chevrolet 2500HD Crewcab Shortbox 4X4 Duramax LLY/Allison<
Black, LT Trim, Gray Heated Leather, Sunroof, XM Bose Radio, Automatic Climate Controls
Full MBRP 4" Exhaust w/6" Tip, MBRP Downpipe, EGR Blocked (FE9 Emissions), PCV Rerouted, Resonator Blocked, AFE Mouthpiece, Edge CTS Insight, Banks Intake w/Scoop, Nicktane Filter Adaptor w/CAT 1R-0750 Filter, Bilstein 5100's, 2006+ Towing Mirrors, GM Tubular Chrome Step Bars, GM Bug Guard and Window Shields, Spray in Bedliner, Dually Rear Light Bar, 265/75R16 Goodyear Silent Armors on stock rims, Superglide 16k Fifth Wheel Hitch, Tekonsha P3 Trailer Brake Control

>2011 Honda CR-V EX-L<
Opal Sage, Tan Heated Leather, Factory Navigation

>2012 Kubota BX1860 Tractor<
LA203 Front Loader, 54" Mid-Mount Mower, 18HP 3 Cylinder Diesel

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Old 06-27-2011, 08:26 PM   #7 (permalink)
blkdmax05
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The stickie on overheating-
LLY Overheating Problems
As I said before, there are fixes for this that are cheaper then a whole new truck. Enjoy your reading material
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Blake
>2005 Chevrolet 2500HD Crewcab Shortbox 4X4 Duramax LLY/Allison<
Black, LT Trim, Gray Heated Leather, Sunroof, XM Bose Radio, Automatic Climate Controls
Full MBRP 4" Exhaust w/6" Tip, MBRP Downpipe, EGR Blocked (FE9 Emissions), PCV Rerouted, Resonator Blocked, AFE Mouthpiece, Edge CTS Insight, Banks Intake w/Scoop, Nicktane Filter Adaptor w/CAT 1R-0750 Filter, Bilstein 5100's, 2006+ Towing Mirrors, GM Tubular Chrome Step Bars, GM Bug Guard and Window Shields, Spray in Bedliner, Dually Rear Light Bar, 265/75R16 Goodyear Silent Armors on stock rims, Superglide 16k Fifth Wheel Hitch, Tekonsha P3 Trailer Brake Control

>2011 Honda CR-V EX-L<
Opal Sage, Tan Heated Leather, Factory Navigation

>2012 Kubota BX1860 Tractor<
LA203 Front Loader, 54" Mid-Mount Mower, 18HP 3 Cylinder Diesel

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Old 06-27-2011, 08:34 PM   #8 (permalink)
Dougba53
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2004.5 Chevy 3500 Duramax Overheating

Where else can I get the cooling system upgraded?
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Old 06-27-2011, 08:42 PM   #9 (permalink)
blkdmax05
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Here's engineer837's write up on how to build an auxiliary radiator setup
http://www.dieselplace.com/forum/sho...d.php?t=371427
He put a lot of hard work into this setup, and it has been getting very positive results in terms of solving the LLY's cooling shortcomings
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Blake
>2005 Chevrolet 2500HD Crewcab Shortbox 4X4 Duramax LLY/Allison<
Black, LT Trim, Gray Heated Leather, Sunroof, XM Bose Radio, Automatic Climate Controls
Full MBRP 4" Exhaust w/6" Tip, MBRP Downpipe, EGR Blocked (FE9 Emissions), PCV Rerouted, Resonator Blocked, AFE Mouthpiece, Edge CTS Insight, Banks Intake w/Scoop, Nicktane Filter Adaptor w/CAT 1R-0750 Filter, Bilstein 5100's, 2006+ Towing Mirrors, GM Tubular Chrome Step Bars, GM Bug Guard and Window Shields, Spray in Bedliner, Dually Rear Light Bar, 265/75R16 Goodyear Silent Armors on stock rims, Superglide 16k Fifth Wheel Hitch, Tekonsha P3 Trailer Brake Control

>2011 Honda CR-V EX-L<
Opal Sage, Tan Heated Leather, Factory Navigation

>2012 Kubota BX1860 Tractor<
LA203 Front Loader, 54" Mid-Mount Mower, 18HP 3 Cylinder Diesel

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Old 06-27-2011, 08:45 PM   #10 (permalink)
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Quote:
Originally Posted by Dougba53 View Post
I am told by Killerbeeperformance that installing an IOH kit and a TCAI kit will resolve my overheating issue with a money back guarantee. Any comments?
Yeah, you hold onto that pipe dream.

This is the same guy who's screwing people on "custom ported" turbo mouthpieces on Ebay.
__________________
2005 D-max w/5-Speed Ally 2WD Chevy Silverado 2500HD, CC/SB LS
- EGR Blocker Plate & PCV Re-Route
- 2" Drop Shackles
- Aluminum Fuel Filter Bleeder Screw
- Kool Vue Extendable Towing Mirrors (Leveled)
- 20" Wheels w/275/55/20 XL Hancook Ventus AS tires
- Auto Meter Phantom 45 PSI Boost & EGT Gauge
- Carter 4601HP 100GPH @ 18PSI Lift Pump w/Quick Fuel Regulator @ 10.5PSI, Napa 4770/3528 Base/Filter
- MBRP 4" Exhaust w/All Season Diesel Performance 3" Down Pipe - Kitty Died
- LBZ Turbo Mouthpiece
- 5DSP EFI Live by Danville Performance (338/392/417/498 & 338 w/Lope HP Tunes) w/Edge Insight CTS
- 20.1 MPG @ 392 HP @ 70 MPH - 16.8 MPG City @ 392 HP (Hand Calculated)
- Pioneer AVH-P3400BH through Bose Amp/Speakers
- Bilstein Shocks 24-186735 & 24-186742 (5100s)


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